Air cylinder



FIG. 1 is a top, front and right side perspective view of an air cylinder, showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a right side view thereof;

FIG. 8 is a front elevational view thereof showing the rods in an extended state;

FIG. 9 is a cross-sectional view thereof taken along line 9--9 in FIG. 2;

FIG. 10 is a cross-sectional view thereof taken along lines 10--10 in FIG. 4;

FIG. 11 is a cross-sectional view thereof taken along line 11--11 in FIG. 7; and,

FIG. 12 is a top, rear and left perspective view thereof. 

The ornamental design for an air cylinder, as shown and described. 